/Engine/Plugins/Developer/Concert/ConcertSync/ConcertSyncClient/Source/ConcertSyncClient/Public/ConcertActivityStream.h
Returns the client info corresponding to an activities. The stream maintains this state as an optimization.
const [FConcertClientInfo](API\Plugins\Concert\FConcertClientInfo) * GetActivityClientInfo ( const [FGuid](API\Runtime\Core\Misc\FGuid) & ActivityEndpointId ) const